From: Matthias Brugger <mbrugger@suse.com>
To: stable@vger.kernel.org
Cc: Will Deacon <will.deacon@arm.com>, Yann Droneaud <ydroneaud@opteya.com>
Subject: arm64/mm: Remove hack in mmap randomize layout
Date: Mon, 13 Jul 2015 17:07:54 +0200 [thread overview]
Message-ID: <5009675.v9gvjRB4Io@ubix> (raw)
Hi all,
Commit d6c763afab14 "arm64/mm: Remove hack in mmap randomize layout" fixes a
security issue which reduces the entropy for mmap base address by half [1].
A attempt to guess where the stack is mapped via brute-force needs just half
the attempts.
I found this patch was added to v3.19-rc1 but should be added as well to:
v3.18, v3.14, v3.12 and v3.10
Best regards,
Matthias Brugger
[1] http://hmarco.org/bugs/linux-ASLR-reducing-mmap-by-half.html
next reply other threads:[~2015-07-13 15:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-13 15:07 Matthias Brugger [this message]
2015-07-15 9:54 ` arm64/mm: Remove hack in mmap randomize layout Yann Droneaud
2015-07-21 13:55 ` Jiri Slaby
2015-09-11 22:27 ` Greg KH
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